Note: The info in the guide is based on the known stats and behavior of the monster, and might not be 100% accurate.
Spurtz are the Pokies in Inferno, with a very low health, damage and production time. However, their large Compound space requirement made them just fast fillers rather than something that's actually of much use in battle. Unfortunately, it is also the only Anything monster available in inferno before the King Wormzer, which is unlocked last. Means that you WILL have to resort to them if you want to destroy an enemy's compound without destroying the rest of the base unless you have King Wormzer or Balthazar, which prioritizes Compounds and Monster Bunkers on the overworld.
If you want to destroy an enemy´s compound(habitat) at low levels you can place a large group of Zagnoids on the enemy´s yard boundary that is in front of the compound so the monsters in there will chase them, then you can place Spurtz to destroy the yard, helped by the Zagnoids and destroying the compound. They're totally amazing.
They are cheap and quick to produce, but their stats made them very vulernable to any splash damage and Bandito's Whirlwind. King Wormzers will take them out with just the splash damage, but, this is a good defense monster for low level, because they battle monsters all vs 1,1 by 1(usually), spurtz can now usually defend without using monster bunker but using the spurtz tower in overworld.